[LayaAirIDE2]鼠标滑轮只能放大模型，不能缩小模型

Laya.stage.on(Laya.Event.MOUSE_WHEEL,this,function(e){

			console.log(e)

			if(e.delta>0){

				let currScale =this.scene.getChildByName("AirPlayer").transform.scale;

				let newScale;

				if (e.delta > 0) {

					newScale = currScale.x + 0.1 > 2 ? 2 : (currScale.x + 0.1 < 0.2 ? 0.2 : (currScale.x + 0.1));

				

				}

				 else if  (e.delta < 0)

				 {

					newScale = currScale.x - 0.1 > 2 ? 2 : (currScale.x - 0.1 < 0.2 ? 0.2 : (currScale.x - 0.1));

					

				}

				this.scene.getChildByName("AirPlayer").transform.scale = new Laya.Vector3(newScale,newScale,newScale);



			}

		})